59         line = self.file.readline()
60         if not line:
61             return line
63             if line == self.boundary + '\n':
64                 self.peek = line
66             if line == self.boundary + '--\n':
67                 self.peek = line
69         return line
78             line = self.peek
81             line = self.file.readline()
82         if not line:
83             return line
84         if he.match(line):
85             return line
90                 return line
91             line = line + self.peek
94 def mime_decode(line):  argument
99         res = mime_code.search(line, pos)
102         newline = newline + line[pos:res.start(0)] + \
105     return newline + line[pos:]
107 def mime_decode_header(line):  argument
112         res = mime_head.search(line, pos)
118         newline = newline + line[pos:res.start(0)] + mime_decode(match)
120     return newline + line[pos:]
136         line = hfile.readline()
137         if not line:
139         if prefix and line[:len(prefix)] == prefix:
140             line = line[len(prefix):]
144         line = mime_decode_header(line)
145         if qp.match(line):
148         if decode_base64 and base64_re.match(line):
151         ofile.write(pref + line)
152         if not prefix and repl.match(line):
155         mp_res = mp.match(line)
158         if he.match(line):
165         line = ifile.readline()
166         if not line:
168         line = re.sub(mime_head, '\\1', line)
169         if prefix and line[:len(prefix)] == prefix:
170             line = line[len(prefix):]
177             if line == multipart + '--\n':
178                 ofile.write(pref + line)
180                 line = None
182             if line == multipart + '\n':
183                 ofile.write(pref + line)
186                 line = nifile.peek
187                 if not line:
193         if line and quoted_printable:
194             while line[-2:] == '=\n':
195                 line = line[:-2]
199                 line = line + newline
200             line = mime_decode(line)
201         if line and is_base64 and not pref:
203             line = base64.decodestring(line)
204         if line:
205             ofile.write(pref + line)
228 def mime_encode(line, header):  argument
237     if len(line) >= 5 and line[:5] == 'From ':
242         res = reg.search(line, pos)
245         newline = newline + line[pos:res.start(0)] + \
248     line = newline + line[pos:]
251     while len(line) >= 75:
253         while line[i] == '=' or line[i-1] == '=':
256         newline = newline + line[:i] + '=\n'
257         line = line[i:]
258     return newline + line
262 def mime_encode_header(line):  argument
267         res = mime_header.search(line, pos)
271                   (newline, line[pos:res.start(0)], res.group(1),
274     return newline + line[pos:]
293         line = hfile.readline()
294         if not line:
296         if not must_quote_header and iso_char.search(line):
298         if mv.match(line):
300         if cte.match(line):
302             if qp.match(line):
304             elif base64_re.match(line):
306         mp_res = mp.match(line)
309         if he.match(line):
310             header_end = line
312         header.append(line)
316         line = ifile.readline()
317         if not line:
320             if line == multipart + '--\n':
321                 message_end = line
323             if line == multipart + '\n':
324                 message_end = line
327             message.append(line)
330             while line[-2:] == '=\n':
331                 line = line[:-2]
335                 line = line + newline
336             line = mime_decode(line)
337         message.append(line)
339             if iso_char.search(line):
342             if len(line) > MAXLEN:
346     for line in header:
348             line = mime_encode_header(line)
349         chrset_res = chrset.match(line)
354                     line = '%s%s%s' % (chrset_res.group(1),
359                 line = '%sus-ascii%s' % chrset_res.group(1, 3)
360         if has_cte and cte.match(line):
361             line = 'Content-Transfer-Encoding: '
363                 line = line + 'base64\n'
365                 line = line + 'quoted-printable\n'
367                 line = line + '7bit\n'
368         ofile.write(line)
380     for line in message:
382             line = mime_encode(line, 0)
383         ofile.write(line)
386     line = message_end
388         if line == multipart + '--\n':
391                 line = ifile.readline()
392                 if not line:
395                     line = mime_encode(line, 0)
396                 ofile.write(line)
397         if line == multipart + '\n':
400             line = nifile.peek
401             if not line:
404             ofile.write(line)
408             line = ifile.readline()
409             if not line:
412                 line = mime_encode(line, 0)
413             ofile.write(line)